FuckFlake

Generates ids based on timestamp offset, node id, counter and random. Instead of SnowFlake and SimpleFlake agorithms which values are sequential it means they can be easely predicted and can't be directly used for data distribution. In FuckFlake first bits are random that makes values dispersed on entire 64-bit interval

Value structure:

• 1..8: 8 bit random
• 9..16: 8 bit node counter
• 17..56: 40 bit microseconds since 2018-01-01
• 57..64: 8 bit node id

it allow take at least 256 collision guarantee values per node per microsecond. Can be increased using bits allocated for node id

API

Containt methods for generate unsigned int64 values

0..18446744073709551615

and helpers to convert to signed in case of use with Postgres or other soft that does't support unsigned values

-9223372036854775808..+9223372036854775807

Generators

fuck()

2821789490373903361

Gen UInt64 id

fuck58()

'mAYmhY7GACg'

Gen UInt64 id Base58 encoded

Helpers

to_sing(num)

iex(55)> FuckFlake.fuck |> FuckFlake.to_sing
-1859420847169712895

to_unsing(num)

iex(56)> -1859420847169712895 |> FuckFlake.to_unsing
7363951189685062913

int_to_b58(int)

iex(57)> -1859420847169712895 |> FuckFlake.int_to_b58
'J6RXjh7JYme'

uint_to_b58(uint)

iex(59)> 7363951189685062913 |> FuckFlake.uint_to_b58
'J6RXjh7JYme'

b58_to_int(b58)

iex(60)> 'J6RXjh7JYme' |> FuckFlake.b58_to_uint
7363951189685062913

b58_to_uint(b58)

iex(61)> 'J6RXjh7JYme' |> FuckFlake.b58_to_int
-1859420847169712895

Installation

If available in Hex, the package can be installed by adding fuck_flake to your list of dependencies in mix.exs:

def deps do
  [
    {:fuck_flake, "~> 0.1.1"}
  ]
end

Documentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/fuck_flake.